Universiti Teknologi Malaysia Institutional Repository

The geogenic influence on 220rn activity concentration in soil gas of Johor state, Malaysia

Haruna, R. and Saleh, M. A. and Hashim, S. and Hamzah, K. and Zainal, J. and Rusli, N. and Sanusi, M. S. M. (2021) The geogenic influence on 220rn activity concentration in soil gas of Johor state, Malaysia. Environmental Earth Sciences, 80 (5). ISSN 1866-6280

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1007/s12665-021-09413-z


The contribution of thoron (220Rn) to natural radiation exposure is commonly neglected. However, dry porous surfaces with relatively high 232Th content can pose a thoron radiation hazard to the environment. Therefore, this research aims at establishing a baseline data for 220Rn activity concentration in soil gas and categorise the measured data based on the geology of Johor state, Malaysia. The activity concentration of 220Rn in soil gas was measured using RAD7 alpha detector. The measured 220Rn activity concentration data varied from MDA to 159.07 ± 3.40 Bq/L. Kruskal–Wallis test on the 220Rn concentration data among the geological formations and soil types reveals a statistically significant result, p = 0.006 and p = 0.005, respectively. An isoconcentration map of 220Rn in soil gas is created. The map indicates higher concentration values generally characterised the Districts of Muar and Ledang.

Item Type:Article
Uncontrolled Keywords:geological formation, isoconcentration, soil type
Subjects:Q Science > QC Physics
ID Code:94476
Deposited By: Narimah Nawil
Deposited On:31 Mar 2022 22:55
Last Modified:31 Mar 2022 22:55

Repository Staff Only: item control page